INFLUENCE OF TYPE OF HIGH NERVOUS ACTIVITY ON PRODUCTIVITY OF RABBITS OF SPECIALIZED MEAT BREADS

Abstract

The results of the research revealed that different animals have different levels of strength, balance and mobility of cortical processes, according to a study of their types of higher nervous activity. By this method, one can determine the typological characteristics of the nervous system of the rabbits in the production conditions, familiar to the animals (directly on the rabbit farm).

The division of the type of higher nervous activity of young rabbits by the type of maternal HNA for two adjacent salts was established. Rabbit Age 7 and 10 Months. The first assault was received in March; the second - in June. We formed the experimental groups of the mother, with 20 head in each: a strong, balanced, mobile type of higher nervous activity, a strong, balanced inert, strong unbalanced and weak. A strong, balanced, mobile type manifests itself in the offspring of all types to a greater extent, and the smallest manifestation is a weak type of HNA. It has been determined that in the offspring of rabbits of strong, balanced, moving and weak types, the actual frequency was closer to the expected one. It was investigated that the type of higher nervous activity can be used as a selection criterion for the selection of young animals for repair of a herd from the rabbits of the desired type, which is due to the Pearson Criterion, which in all the studied groups had a third probability threshold.

The influence of the type of higher nervous activity of rabbits' breeds of specialized breeds of meat on productivity indicators on growing and fattening for the first two adjacent salts of their mothers of Californian and New Zealand white breeds was studied. The following indices were studied: live weight at slaughter in 90 days, average daily gain in the period of 31-90 days, slaughter output. The research has found that the best productive qualities of the organism are inherent in rabbits with a strong, balanced motive type of HNA. It is determined that a strong balanced type of offspring of mothers of group II is inferior to a strong balanced type of offspring of mothers of group I in terms of live weight by 32 g, with an average daily gain of 1.3 g, and a mortality rate of 2.0%.

With regard to the third group of mothers, we found that this difference is 107 g, 5.5 g and 5.7% of the investigated characteristics. In the offspring of mothers of the fourth group, this difference is the largest, and amounted to: 237 g, 6.3 g, 7.8%. Progeny, distributed by other types of higher nervous activity, also reduces its productivity by 15 ... 25%.

We have obtained similar results for the performance of the second offspring of the offspring.